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Color and Light
| Question | Answer |
|---|---|
| absorb/absorption | To take in or use up and not reflect |
| Concave | A surface that is curved inward, such as a mirror, or a lens that is thinnest at the center |
| Convex | a surface that is curved outward, such as a mirror, or a lens that is thickest at the center |
| Cornea | Transparent membrane of the eyeball |
| Dispersion | The separation of white light into colors by refraction |
| Energy | The ability to do work |
| Image | An optically formed representation of an object made by a mirror or lens |
| Inverted | To turn upside down; to reverse the position of something |
| Iris | the pigmented part of the eye which regulates the size of the pupil by contracting and expanding around it |
| Lens/Lenses | Curved piece of glass or other transparent substance used to refract light rays converge or diverge forming an image |
| Light | Bright form of energy given off by something (such as the sun) that lets one see objects |
| Luminous | Emitting or reflecting light |
| Opaque | Material that lets no light pass through it |
| Optic Nerve | Connects the retina to the brain |
| Optics | Pertaining or referring to sight or the eye |
| Pigment | Pigment– a material used as coloring matter, suitable for making paint |
| Prism | Solid figure with triangular ends and rectangular sides, used to disperse light into a spectrum |
| Pupil | The round opening in the iris of the eye controls amount of light that falls on the retina |
| Reflect/Reflection | The bouncing back of light from a surface |
| Refract/Refraction | The bending of a ray of light as it passes obliquely from one medium into another |
| Retina | The light's sensitive membrane lining the inner eyeball connected by the optic nerve to the brain |
| Sclera | The white of the eye |
| Translucent | A material that lets some light pass through it; objects can not be clearly viewed |
| Transparent | A material that lets most light pass through it; objects can be clearly viewed |
| Artificial and Natural | Two sources of light |
| What type of materials are good reflectors of light? | Smooth, shiny and light colored materials |
| Sun | Is an important source of natural light. |
| What happens when sunlight hits the snow? | Some of the sunlight is absorbed and the light rays absorbed and are changed into heat energy |
| Why is the driveway hotter than the grass during the summer? | Light rays are absorbed and are changed into heat energy |
| Absorbed | When something is black, all color is absorbed or reflected |
| Reflected | When something is white, all color is absorbed or reflected |
| White | When all the colors of light are mixed together, you see what color |
| Larger | concave mirrors make an image appear smaller or larger? |
| Smaller | Convex mirrors make an image appear smaller or larger |
| Convex | Your eye has a convex or concave lens? |
| What does a prism do? | refracts the white light and separates the colors into a band of colors called the visible spectrum |
| How does light travel through transparent materials? | in a straight line |
| Why does a pencil in a cup of water appear broken into two pieces? | because the water bends the light rays from the pencil |
Created by:
ccdpittsford
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